Spending more time in the sun might help people who have been having trouble sleeping during the COVID-19 pandemic, a doctor said. People who work from home and those who look at screens for long periods receive less sunlight and more blue light emitted by electronic devices, which can disrupt the body’s biological clock and affect sleep quality, said Lee Pei-lin (李佩玲), director of the sleep disorder center at National Taiwan University Hospital. The hypothalamus regulates the circadian rhythm by adjusting physiological functions according to changes in lighting from day to night, Lee said, adding that adjusting work and rest periods according